WO2021120735A1

WO2021120735A1 - Detection apparatus and server

Info

Publication number: WO2021120735A1
Application number: PCT/CN2020/115997
Authority: WO
Inventors: 许伟强; 李晓初; 姚益民
Original assignee: 华为技术有限公司
Priority date: 2019-12-16
Filing date: 2020-09-17
Publication date: 2021-06-24
Also published as: CN111025138B; CN111025138A; EP4043895A1; EP4043895A4; US20220307947A1

Abstract

A detection apparatus (100) and a server. The apparatus (100) is used for detecting whether a liquid cooling radiating tube (200) in a device or an electromagnetic valve (300) on the liquid cooling radiating tube (200) is abnormal; the apparatus (100) comprises a control chip (110); and the control chip (110) can control the working state of the electromagnetic valve (300). The control chip (110) can also acquire the temperature of a component (400) in the device. When whether the liquid cooling radiating tube (200) or the electromagnetic valve (300) is abnormal is detected, the control chip (110) can acquire the temperature difference of the component (400) in the device when same controls the working state of the electromagnetic valve (300), and determines, in a more convenient manner and according to the temperature difference, that the liquid cooling radiating tube (200) or the electromagnetic valve (300) is abnormal. The detection apparatus (100) can directly acquire the temperature difference of a component in a device, without being provided with other temperature measurement apparatuses, such that the cost can be effectively reduced.

Description

Detection device and server

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201911293639.2, and the application name is "a detection device and server" on December 16, 2019, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of heat dissipation technology, and in particular to a detection device and a server.

Background technique

At present, the liquid cooling device installed in the server mainly uses a pump to drive the coolant in the heat pipe to circulate, absorb the heat of each component in the server (such as processor, graphics card, etc.), and dissipate the heat inside the server to the outside, thereby reducing the server The temperature of each component is lowered, which can ensure that each component can work normally at an appropriate temperature.

In order to be able to control the circulation of the cold liquid in the heat dissipation pipe of the liquid-cooled heat dissipation device, a solenoid valve can be provided on the heat dissipation pipe. When the cooling liquid in the radiating pipe leaks, the circulation of the cooling liquid in the radiating pipe can be stopped in time by controlling the solenoid valve.

However, the existing liquid-cooled heat sink can only be used to detect coolant leakage, and the heat pipe or solenoid valve in the liquid-cooled heat sink cannot be self-checked, and the heat pipe or solenoid valve in the liquid-cooled heat sink cannot be guaranteed. Whether it is working normally, there are certain safety risks.

Summary of the invention

The present application provides a detection device and a server for detecting solenoid valves and cooling liquid heat pipes.

In the first aspect, the present application provides a detection device, which is used to detect whether the solenoid valve on the cooling liquid heat pipe or the cooling heat pipe in the equipment is abnormal. The device includes a control chip; the control chip can control the operation of the solenoid valve Status, such as controlling the solenoid valve to open or close. The control chip can also obtain the temperature of the components in the device. When detecting whether the solenoid valve on the coolant radiating pipe or the cooling radiating pipe is abnormal, the control chip can obtain the temperature difference of the components in the device while controlling the working state of the solenoid valve; determine the coolant radiating pipe according to the temperature difference Or the solenoid valve is abnormal.

Through the above detection device, the detection device can determine the temperature difference of the components in the equipment under the condition of controlling the working state of the solenoid valve, and then can determine the abnormality of the coolant radiating pipe or the solenoid valve based on the temperature difference, so as to detect the coolant With the effect of the radiator pipe or solenoid valve, the detection device can directly obtain the temperature difference of the components in the equipment, and there is no need to set other temperature detection devices, which can effectively save costs.

In a possible design, the device further includes a power supply circuit, which can supply power to the solenoid valve, and the control chip can control the working status of the solenoid valve by controlling the power supply state of the power supply circuit to the solenoid valve. Optionally, the power supply circuit can also supply power to the control chip.

Through the above detection device, the power supply state of the solenoid valve can be conveniently controlled through the power supply circuit. If the power supply circuit can supply power to the solenoid valve and the control chip at the same time, the control chip and the solenoid valve can keep working at the same time. If the power supply circuit fails, the control chip and the solenoid valve fail at the same time, so that the control chip can always control the solenoid valve, avoiding unilateral failure of both (the control chip and the solenoid valve) and the final solenoid valve out of control.

In a possible design, when the control chip detects whether the solenoid valve on the coolant radiator pipe or the cooling radiator pipe is abnormal, it can control the solenoid valve from the open state to the closed state. After the temperature of the component stabilizes, obtain the components in the device的 first temperature difference; after that, compare the first temperature difference with the first threshold. If it is detected that the first temperature difference is lower than the first threshold, it is determined that the solenoid valve is abnormal. If it is detected that the second temperature difference is higher than the first threshold, it is determined that the solenoid valve is normal.

Through the above detection device, the control chip can easily determine whether the solenoid valve is abnormal by comparing the first temperature difference with the first threshold. This method is simpler and more effective.

In a possible design, when the control chip detects whether the solenoid valve on the coolant radiator pipe or the cooling radiator pipe is abnormal, it can control the solenoid valve from the closed state to the open state. After the temperature of the component stabilizes, obtain the components in the device的 second temperature difference; after that, compare the second temperature difference with the second threshold. If it is detected that the second temperature difference is lower than the second threshold, it indicates that one or more of the cooling liquid radiating pipes or the solenoid valve is abnormal. If it is detected that the second temperature difference value is higher than the second threshold value, it is determined that the cooling liquid radiating pipe and the solenoid valve are normal.

Through the above detection device, the control chip can easily determine whether the solenoid valve or the cooling liquid heat pipe is abnormal by comparing the second temperature difference with the second threshold. This method is simpler and more effective.

In a possible design, when the power supply circuit supplies power to the solenoid valve, the solenoid valve is in an open state, and when the power supply circuit is powered off for the solenoid valve, the solenoid valve is in a closed state. The solenoid valve is a normally closed solenoid valve. When the power supply circuit is damaged due to liquid leakage, the solenoid valve will be closed in time to stop the flow of coolant in the coolant radiating pipe in time. The arrangement of this solenoid valve can effectively prevent liquid leakage.

In a possible design, the power supply circuit is for the solenoid valve to be de-energized, and the solenoid valve is in an open state; the power supply circuit is for powering the solenoid valve, and the solenoid valve is in a closed state. The solenoid valve is a normally open solenoid valve. The control method of the solenoid valve is simpler and can effectively save electric energy.

In a possible design, the control chip may send the first alarm information to the system management module in the device after determining that the coolant radiating pipe or the solenoid valve is abnormal. The first alarm information is used to indicate the coolant radiating pipe or the solenoid valve. abnormal.

Through the above detection device, the control chip can notify the system management module of the abnormality of the coolant radiating pipe or solenoid valve in time through the first alarm information, so that the coolant radiating pipe or solenoid valve can be repaired later to avoid the abnormality of the coolant radiating pipe or solenoid valve. The safety hazards arising.

In a possible design, the control chip can spontaneously detect the coolant radiating pipe and the solenoid valve, or can detect the coolant radiating pipe and the solenoid valve under the instruction of the system management module. Exemplarily, the system management module may send a control signal to the control chip, and the control signal instructs the control chip to detect whether the coolant radiating pipe and the solenoid valve in the device are abnormal. After receiving the control signal, the control chip detects the cooling liquid radiating pipe and the solenoid valve in the device, and obtains the temperature difference of the components in the device.

Through the above detection device, a variety of methods for triggering the control chip to detect the cooling liquid heat pipe and the solenoid valve can be realized, which is suitable for a variety of different application scenarios and has a wider range of applications.

In a possible design, the device also includes a detection coil, which is used to detect whether the coolant radiating pipe in the equipment is leaking; the detection coil includes a first coil and a second coil connected in parallel, and the control chip is also used to detect the second coil. The voltage difference between the first coil and the second coil, the control chip can determine whether the detection coil is faulty by detecting the voltage difference between the first coil and the second coil.

Through the above detection device, the control chip not only has the function of detecting the cooling liquid heat pipe and the solenoid valve, but also can detect the detection coil, and can monitor the state of the detection coil to ensure that the detection coil can work normally.

In a possible design, the control chip detects the voltage difference between the first wire and the second coil when the first wire and the second coil are short-circuited, and if the voltage difference is not zero, sends a second alarm to the system management module Information, the second alarm information is used to indicate the failure of the detection coil.

Through the above-mentioned detection device, the control chip can notify the system management module of the abnormality of the detection coil in time through the second alarm information, so that the detection coil can be replaced or repaired later, and the detection coil can work normally.

In a possible design, when the control chip determines that the first coil and the second coil are short-circuited, the voltage difference between the first coil and the second coil is zero, indicating that there is no fault in the detection coil, and the control chip can report to the system The management module sends instruction information, which is used to indicate that the detection coil is normal.

Through the above detection device, the control chip can inform the system management module of the working status of the detection coil in time through the instruction information, so that it can be determined based on this that the detection coil can accurately detect whether the coolant radiating pipe is leaking.

In a possible design, the control chip can also receive a leakage analog signal through the detection coil, and the leakage analog signal is used to indicate leakage of the coolant radiating pipe. The control chip can convert the leakage analog signal into a leakage digital signal and send it to the system management module, or it can directly send the third alarm information to the system management module. The third alarm information indicates the leakage of the coolant heat pipe.

Through the above detection device, the control chip can not only detect whether the detection coil is normal, but also receive the leakage analog signal from the detection coil. When the control chip determines that the detection coil is normal, the accuracy of the leakage simulation signal can be further determined, so as to accurately determine whether the coolant radiating pipe is leaking.

In the second aspect, the present application provides a server that includes components, a cooling liquid heat pipe, a solenoid valve on the cooling heat pipe, and the detection provided in the first aspect or any possible design of the first aspect Device.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a solenoid valve;

FIG. 2 is a schematic structural diagram of a detection device provided by this application;

3A to 3B are schematic structural diagrams of another detection device provided by this application;

FIG. 4 is a schematic structural diagram of another detection device provided by this application;

5A is a schematic diagram of the structure of a detection coil provided by this application;

5B is a schematic diagram of the connection between a detection coil and a control chip provided by this application;

Fig. 6 is a schematic structural diagram of another detection device provided by this application.

Detailed ways

As shown in Figure 1, it is a schematic diagram of the structure of a common solenoid valve. The solenoid valve is set on the coolant radiating pipe. The direction indicated by the arrow in Figure 1 is the flow direction of the coolant in the coolant radiating pipe. One side is the water inlet and the other side is the water outlet. The solenoid valve includes a spherical valve core. When the solenoid valve is closed, the closed part of the spherical valve core faces the water inlet and the water outlet, blocking the circulation of the coolant. When the solenoid valve is opened, the water holes on the spherical valve core face the water inlet and the water outlet, and the cooling liquid circulates in the cooling liquid heat pipe through the water holes.

But if the solenoid valve is abnormal, the solenoid valve abnormality includes but is not limited to: the solenoid valve is damaged, and the solenoid valve is blocked by foreign objects. For example, a foreign body blocks the water hole of the solenoid valve. Even if the solenoid valve is opened, the coolant cannot pass through the water hole. Furthermore, the coolant cannot flow through the coolant radiator pipe, or the flow rate of the coolant will be significantly reduced (if the foreign body is just Part of the water hole is blocked). In this way, the heat of each component in the equipment cannot be dispersed in time, and there is a potential hazard.

The coolant radiating pipe may also be abnormal. For example, if a certain section of the coolant radiating pipe is blocked by a foreign body, or a certain section of the coolant radiating pipe is broken, the cooling fluid cannot be properly circulated.

To this end, the embodiment of the present application provides a detection device for detecting the solenoid valve and the cooling liquid radiating pipe in the equipment, and detecting the abnormality of the solenoid valve and the cooling liquid radiating pipe. The detection device includes a control chip, which can control the working state of the solenoid valve, for example, control the opening or closing of the solenoid valve, and can also obtain the temperature difference of the components in the device under the condition of controlling the working state of the solenoid valve, Determine whether the coolant radiating pipe or solenoid valve is abnormal according to the temperature difference. In the embodiment of the present application, the control chip can directly obtain the temperature difference of the components, and it is convenient to determine whether the cooling liquid is circulating by monitoring the temperature difference, and then determine whether the cooling liquid radiating pipe or the solenoid valve is abnormal, so that potential hazards can be eliminated in time.

The detection device provided by the embodiment of the present application will be described below with reference to the accompanying drawings. Refer to FIG. 2, which is a structural example diagram of a detection device provided in an application embodiment. The detection device 100 is installed in a device, and can detect whether the cooling liquid radiating pipe 200 or the solenoid valve 300 arranged on the cooling liquid radiating pipe 200 in the device is abnormal. The cooling liquid heat pipe 200 may be disposed beside the component 400 to dissipate heat for the component 400.

The detection device 100 includes a control chip 110, and the control chip 110 can control the working state of the solenoid valve 300. In the embodiment of the present application, the working state of the solenoid valve 300 includes: open and closed.

When the control chip 110 controls the working state of the solenoid valve 300, it can also obtain the temperature difference of the component 400, and determine whether the cooling liquid radiating pipe 200 or the solenoid valve 300 is abnormal according to the temperature difference. The embodiment of the present application does not limit the number of components 400, and there may be one or more components.

The embodiment of the present application does not limit the type of the control chip 110. Any chip capable of controlling the working state of the solenoid valve 300 and determining the abnormality of the solenoid valve 300 or the coolant heat pipe 200 based on the temperature difference is applicable to the embodiment of the present application.

The component 400 in the device usually comes with the function of detecting its own temperature and can record the temperature change. The control chip 110 can directly obtain the temperature difference of the component 400 from the component 400, and use the function of the component 400 to record the temperature. The temperature difference can be obtained without adding other devices, which can effectively save costs.

If the component 400 cannot record temperature changes, a temperature sensor 410 can be provided on the component 400, and the temperature sensor 410 can detect the temperature of the component 400, and the control chip 110 can obtain the temperature through the temperature sensor 410 provided on the component 400 Difference. The temperature difference of the component 400 is acquired by setting the temperature sensor 410, which is suitable for various devices and can effectively expand the scope of application.

The detection device provided by the embodiment of the present application may be applied to any device including a solenoid valve and a cooling liquid heat pipe. For example, it may be applied to a server to detect the solenoid valve and the cooling liquid heat pipe in the server.

The embodiment of the present application does not limit the manner in which the control chip 110 controls the operating state of the solenoid valve 300. For example, the control chip 110 can be connected to the system management module 500 in the device, and the system management module 500 can control the power supply to supply power to the solenoid valve 300. status. The control chip 110 may send a signal to the system management module 500, and the signal may drive the system management module 500 to control the power supply to supply power to the solenoid valve 300 or to cut off the power.

The system management module 500 may be a baseboard management controller (BMC), a super input output chip (super input output, SIO), or an embedded controller (EC). Here, the system management module 500 can receive a signal from the control chip 110, and control the solenoid valve 300 to open or close according to the signal. The system management module 500 can control the power supply to power or cut off the solenoid valve 300 according to the signal.

For another example, as shown in FIG. 3A, the detection device 100 may include a power supply circuit 120 for supplying power to the solenoid valve 300, the control chip 110 may be connected to the power supply circuit 120, and the control chip 110 may control the power supply circuit 120 to be the solenoid valve 300. The power supply state of the solenoid valve 300, in turn, controls the operating state of the solenoid valve 300.

The embodiment of the present application does not limit the specific structure of the power supply circuit 120. As shown in FIG. 3B, the power supply circuit 120 may include a power supply module 121 and a switch module 122. The power supply module 121 can provide electrical energy, which may be a power supply or a power supply interface. The embodiment of the present application does not limit the specific form of the power supply module 121 Any module that can provide electrical energy can be used as the power supply module 121. The switch module 122 is respectively connected to the power supply module 121 and the solenoid valve 300, and is located on the power supply line of the power supply module 121 and the solenoid valve 300, and the control chip 110 can be connected to the switch module 122.

The control chip 110 can control the opening and closing of the power supply line between the power supply module 121 and the solenoid valve 300, so that the power supply module 121 supplies power to the solenoid valve 300 or cuts off the power. The embodiment of the present application does not limit the specific form of the switch module 122. The switch module 122 can be a common switch, or a transistor such as a triode, a metal oxide semiconductor (MOS) tube, etc., and the switch module 122 can also be For a module composed of multiple transistors, any device that can be controlled by the control chip 110 to make the power supply line of the solenoid valve 300 open and close is applicable to the embodiments of the present application.

According to the closed condition of the solenoid valve 300 when the power is supplied, the solenoid valve 300 on the coolant radiating pipe 200 can be divided into two types: a normally open solenoid valve and a normally closed solenoid valve.

For a normally open solenoid valve, this type of solenoid valve is always open when it is not powered, and closed when it is powered; when it is necessary to block the flow of cooling water in the coolant radiating pipe 200, only By supplying power to the normally open solenoid valve, the normally open solenoid valve can be closed.

For a normally closed solenoid valve, this type of solenoid valve is always in a closed state when it is not powered, and in an open state when it is powered. When cooling water circulates in the coolant radiating pipe 200, this type of solenoid valve needs to be powered at all times to ensure that the solenoid valve is always open; when it is necessary to block the flow of cooling water in the coolant radiating pipe, it needs to be normally closed. The solenoid valve is de-energized to close the normally closed solenoid valve.

It should be noted that because the normally closed solenoid valve needs to be in the open state for a long time, it is necessary to always supply power to the normally closed solenoid valve, which may cause the normally closed solenoid valve to generate heat under the condition of long-term power supply. In this application In the embodiment, the cooling liquid in the cooling liquid heat pipe can be used as the normally closed solenoid valve for heat dissipation, so as to ensure that the normally closed solenoid valve can work normally.

Optionally, the power supply circuit 120 can also supply power for the control chip 110, that is, the solenoid valve 300 and the control chip 110 use the same power supply circuit 120 for power supply. When the power supply circuit 120 fails, not only the control chip 110 fails, but the solenoid valve 300 also fails to work normally; when the power supply circuit 120 does not fail, both the control chip 110 and the solenoid valve 300 can work normally. There is no situation where one of the control chip 110 and the solenoid valve 300 fails and one can work normally, so that the control chip 110 and the solenoid valve 300 can keep working or fail at the same time, so that the control chip 110 can always work under normal working conditions. The operating state of the solenoid valve 300 can be controlled.

As shown in FIG. 4, the power supply circuit 120 may include a power supply module 121 and a switch module 122. The switch module 122 is respectively connected to the power supply module 121 and the solenoid valve 300, and is located on the power supply line of the power supply module 121 and the solenoid valve 300. The control chip 110 can be connected to the switch module 122 and the power supply module 121, and the control chip 110 is connected to the power supply module 121 to make The control chip 110 obtains power from the power supply module 121, the control chip 110 is connected to the switch module 122, and the control chip 110 can control the switch module 122 to control the opening and closing of the power supply line between the power supply module 121 and the solenoid valve 300.

If the operating voltages of the control chip 110 and the solenoid valve 300 are different, for example, the operating voltage of the control chip 110 is lower, and a voltage converter 123 can be provided between the power supply module 121 and the control chip 110 to reduce the voltage provided by the power supply module 121 to The operating voltage of the control chip 110 makes the control chip 110 work normally.

The following describes how the control chip 110 determines the abnormality of the coolant radiating pipe 200 or the solenoid valve 300 according to the temperature difference. There are many ways for the control chip 110 to determine the abnormality of the coolant radiating pipe 200 or the solenoid valve 300 according to the temperature difference. List two of them:

Method 1: The control chip 110 can control the solenoid valve 300 from the open state to the closed state, and after the temperature of the component 400 stabilizes, obtain the first temperature difference of the component 400, and determine the cooling liquid heat pipe according to the first temperature difference. Whether 200 and solenoid valve 300 are abnormal. The first temperature difference is the temperature change value of the component 400 when the solenoid valve 300 changes from the open state to the closed state.

When the solenoid valve 300 is closed, the cooling liquid in the cooling liquid radiating pipe 200 should not be able to circulate, and the heat of the component 400 cannot be dispersed, which will cause the temperature of the component 400 to rise. The control chip 110 can compare the first temperature difference with the first threshold, and determine whether the coolant heat dissipation pipe 200 and the solenoid valve 300 are abnormal based on the comparison result of the first temperature difference and the first threshold. The embodiment of the present application does not limit the setting method and specific value of the first threshold value. The first threshold value may be an empirical value, and the first threshold value is related to the temperature change of the component 400 when the component 400 does not dissipate heat.

It should be noted that the temperature change usually occurs within a period of time. The signal control chip can control the solenoid valve 300 to close in the first period of time, obtain the temperature difference of the component 400 in the first period of time, and determine the temperature difference. As the first temperature difference.

If the first temperature difference is lower than the first threshold, it means that the first temperature difference is small, and the temperature of the component 400 has not changed significantly, indicating that the coolant radiating pipe 200 has circulating coolant, and the solenoid valve 300 is abnormal. For example, the solenoid valve 300 is not completely closed, the valve core of the solenoid valve 300 is damaged, and so on.

If the first temperature difference is higher than the first threshold, it means that the first temperature difference is large and the temperature of the component 400 has changed greatly, indicating that there is no circulating cooling liquid in the cooling liquid radiating pipe 200 and the solenoid valve 300 is normal.

There is no limit to the number of times of execution mode 1. That is, the control chip 110 can close the solenoid valve 300 multiple times to obtain multiple first temperature difference values, and obtain the first average temperature based on the first temperature difference values obtained multiple times. The difference value is to compare the first average temperature difference value and the first threshold value, and determine whether the solenoid valve 300 is abnormal according to the comparison result of the first average temperature difference value and the first threshold value.

Method 2: After the solenoid valve 300 is controlled to change from the closed state to the open state, when the temperature of the component 400 is stabilized, the second temperature difference of the component 400 is obtained, and the coolant radiating pipe 200 and the solenoid valve are determined according to the second temperature difference. 300 is abnormal. The second temperature difference is the temperature change value of the component 400 when the solenoid valve 300 changes from the closed state to the open state.

It can be seen from the foregoing that when the solenoid valve 300 is closed, the coolant in the coolant radiating pipe 200 cannot circulate, which will cause the temperature of the component 400 to rise. If the solenoid valve 300 is then opened, the cooling in the coolant radiating pipe 200 The liquid should be circulating, and the heat of the component 400 can be dispersed by the circulating cooling liquid, which will cause the temperature of the component 400 to drop. The control chip 110 may compare the second temperature difference with the second threshold, and determine whether the cooling liquid heat pipe 200 and the solenoid valve 300 are abnormal based on the comparison result of the second temperature difference with the second threshold. The embodiment of the present application does not limit the setting method and specific value of the second threshold. The second threshold may be an empirical value, and the second threshold is related to the temperature change of the component 400 under the condition of normal heat dissipation.

It should be noted that the temperature change usually occurs within a period of time. The signal control chip can control the solenoid valve 300 to open in the second period of time to obtain the temperature difference of the component 400 in the second period of time, and the temperature difference As the second temperature difference. There is no limit to the number of times of execution of the second method, that is, the control chip 110 can close the solenoid valve 300 multiple times, and then open the solenoid valve 300 to obtain multiple second temperature differences, based on the second temperature differences obtained multiple times The second average temperature difference value is obtained from the value, the second average temperature difference value is compared with the second threshold value, and whether the solenoid valve 300 is abnormal is determined according to the comparison result of the second average temperature difference value and the second threshold value.

If the second temperature difference is lower than the second threshold, it means that the second temperature difference is small and the temperature of the component 400 has not changed significantly. There are many cases where the second temperature difference is small. Two of them are listed below. Possible situations:

Case 1: When the solenoid valve 300 is closed, due to the abnormality of the solenoid valve 300, there is a circulating coolant in the coolant radiating pipe 200, and the temperature of the assembly 400 only rises to a small extent. After the solenoid valve 300 is opened, the cooling liquid circulating in the cooling liquid heat pipe 200 will only cause the temperature of the component 400 to drop slightly, making the second temperature difference smaller.

Case 2: After the solenoid valve 300 is closed, the solenoid valve 300 is opened. Due to the abnormality of the solenoid valve 300 or/and the cooling liquid radiating pipe 200, the circulating cooling liquid is less, and the heat of the component 400 cannot be taken away in time, resulting in a small temperature difference of the component 400.

There are many abnormalities in the solenoid valve 300 or/and the coolant radiating pipe 200. For example, the solenoid valve 300 is clogged with foreign matter, the coolant radiating pipe 200 is clogged with foreign matter, the coolant radiating pipe 200 is leaking, and so on. Any abnormality of the solenoid valve 300 or/and the cooling liquid radiating pipe 200 that can reduce the circulating cooling liquid is applicable to the embodiments of the present application.

In either case, if the second temperature difference value is lower than the second threshold value, it indicates that the coolant radiating pipe 200 or the solenoid valve 300 is abnormal.

If the second temperature difference is higher than the second threshold, it means that the second temperature difference is relatively large, and the temperature of the component 400 has changed greatly, indicating that there is circulating cooling fluid in the cooling fluid radiating pipe 200, and the circulation volume of the cooling fluid is also at normal range.

The embodiment of the present application is not limited to the above two methods. The above two methods can also be used in combination. For example, the control chip 110 may first control the solenoid valve 300 to close to obtain the first temperature difference; after that, the solenoid valve 300 is controlled to open, Obtain the second temperature difference. The control chip 110 compares the first temperature difference with the first threshold, and compares the second temperature difference with the second threshold; if the second temperature difference is lower than the second threshold, it indicates that the solenoid valve 300 and/or the coolant The heat pipe 200 is abnormal. In this case, if the first temperature difference is lower than the first threshold, it indicates that the solenoid valve 300 is abnormal. If the first temperature difference is higher than the first threshold, it indicates that the solenoid valve 300 is normal, resulting in The reason why the second temperature difference is lower than the second threshold is that the cooling liquid radiating pipe 200 is abnormal. If the second temperature difference is higher than the second threshold, it can indicate that the solenoid valve 300 and the cooling liquid radiating pipe 200 are both normal.

After determining that the cooling liquid radiating pipe 200 or the solenoid valve 300 is abnormal, the control chip 110 sends the first alarm information to the system management module 500, and the first alarm information indicates the abnormality of the cooling liquid radiating pipe 200 or the solenoid valve 300.

For example, after the control chip 110 determines that the solenoid valve 300 is abnormal, it may send the first alarm information indicating that the solenoid valve 300 is abnormal to the system management module 500. After determining that the cooling liquid heat pipe 200 is abnormal, the control chip 110 may send the first alarm information indicating that the cooling liquid heat pipe 200 is abnormal to the system management module 500. If the control chip 110 cannot accurately determine which of the solenoid valve 300 and the coolant heat pipe 200 is abnormal, the control chip 110 may send the first alarm message indicating that the solenoid valve 300 or the coolant heat pipe 200 is abnormal by the system management module 500.

The control chip 110 can detect whether the cooling liquid heat pipe 200 or the solenoid valve 300 in the device 100 is abnormal in the above-mentioned manner. For example, the control chip 110 can actively detect the cooling liquid heat pipe 200 or the cooling liquid pipe 200 or the cooling liquid in the device 100 periodically. Whether the solenoid valve 300 on the heat pipe is abnormal.

The control chip 110 can also detect whether the coolant radiating pipe 200 or the solenoid valve 300 in the device is abnormal under the trigger of the control signal. For example, the control chip 110 may detect whether the coolant heat pipe 200 or the solenoid valve 300 in the device is abnormal after receiving the control signal sent by the system management module 500. The control signal instructs the control chip 110 to detect the coolant heat pipe 200 and the solenoid valve 300 in the device. Is the valve 300 abnormal?

As a possible implementation manner, the detection device 100 may further include a detection coil 130, which can detect whether the coolant radiating pipe 200 in the equipment is leaking. The control chip 110 can detect whether the detection coil 130 is faulty. For example, the detection coil 130 includes a first coil 131 and a second coil 132 connected in parallel, and the control chip 110 can determine whether the detection coil 130 is faulty by detecting the voltage difference between the first coil 131 and the second coil 132.

As shown in FIG. 5A, it is a schematic diagram of the detection coil 130 provided inside the device. The detection coil 130 includes two parallel coils, the first coil 131 and the second coil 132 are identified, and the two parallel coils are wound together. . The detection coil 130 is arranged near the coolant radiating pipe 200. When the first coil 131 and the second coil 132 are leaking, it will cause a short circuit between the first coil 131 and the second coil 132, which in turn leads to the first coil 131 When the voltage difference or current with the second coil 132 changes, the voltage difference or current between one end of the first coil 131 and one end of the second coil 132 can be used to detect whether the coolant radiating pipe 200 is leaking.

The control chip 110 can detect the working state of the detection coil 130 by detecting the voltage difference between the other end of the first coil 131 and the other end of the second coil 132 in the detection coil.

When the detection coil 130 works normally, the working voltages of the first coil 131 and the second coil 132 are usually constant, and correspondingly, the voltage difference between the other end of the first coil 131 and the other end of the second coil 132 is usually a fixed value. If the detection coil 130 fails, such as the first coil 131 or the second coil 132 is broken, the voltage of the first coil 131 or the second coil 132 will change, and the voltage difference between the other end of the first coil 131 and the other end of the second coil 132 It is no longer a fixed value, but will change to another value.

The control chip 110 can respectively detect the voltage at the other end of the first coil 131 and the voltage at the other end of the second coil 132, and then determine the voltage difference between the other end of the first coil 131 and the other end of the second coil 132, and determine according to the voltage difference Check whether the coil 130 is faulty.

The control chip 110 can also detect the voltage difference between the other end of the first coil 131 and the other end of the second coil 132 when the first coil 131 and the second coil 132 are short-circuited. The short circuit of the first coil 131 and the second coil 132 means that the first coil 131 and the second coil 132 are connected. In the case of a short circuit, the first coil 131 and the second coil 132 are connected in series, and the first coil 131 and the second coil are connected in series. The voltage difference of 132 should be zero. If the voltage difference between the first coil 131 and the second coil 132 is not zero in the case of a short circuit, it means that the first coil 131 or the second coil 132 may be broken, and the detection coil 130 is faulty. After the control chip 110 determines that the detection coil 130 is faulty, it may send second alarm information to the system management module 500 to notify the system management module 500 that the detection coil 130 is faulty.

The voltage difference between the first coil 131 and the second coil 132 is zero, which means that the first coil 131 or the second coil 132 is not broken, and the detection coil 130 is normal. After the control chip 110 determines that the detection coil 130 is normal, it may send instruction information to the system management module 500 to notify the system management module 500 that the detection coil 130 is normal.

Exemplarily, as shown in FIG. 5B, at the other end of the detection coil 130, the first coil 131 and the second coil 132 are connected, the connection point is P, the control chip 110 is connected to the point P, and the voltage passing through the point P is the first The voltage difference when the coil 131 and the second coil 132 are short-circuited.

Connecting the first coil 131 and the second coil 132 at the other end of the detection coil 130 is equivalent to short-circuiting the first coil 131 and the second coil 132 at the other end of the detection coil 130. If the detection coil 130 can work normally, the voltage difference when the first coil 131 and the second coil 132 are short-circuited should be zero. If the control chip 110 detects that the voltage at point P is zero, it can be determined that the detection coil 130 is normal jobs. For example, the detection coil 130 cannot work normally, for example, any one of the first coil 131 and the second coil 132 is faulty, for example, a certain coil is broken, and the voltage difference when the first coil 131 and the second coil 132 are short-circuited is not equal to zero. If the control chip 110 detects that the voltage at point P is not zero, it can be determined that the detection coil 130 cannot work normally.

As a possible implementation manner, the control chip 110 may detect the voltage difference between the first coil 131 and the second coil 132 by connecting the first coil 131 and the second coil 132 at both ends of the detection coil 130. The voltage difference between the first coil 131 and the second coil 132 at one end of the detection coil 130 (for example, the voltage at point B) can be used as a leakage analog signal, which can indicate the leakage of the coolant radiator pipe 200, and the detection coil The voltage difference between the first coil 131 and the second coil 132 at the other end of the 130 can be used as a self-check signal for detecting whether it is working normally.

In the case that the control chip 110 determines that the detection coil 130 is normal and the second temperature difference is lower than the second threshold, if the control chip 110 does not receive a liquid leakage detection signal, it means that the current cooling liquid heat pipe is not leaking, resulting in a second temperature difference. The reason why the temperature difference is lower than the second threshold may be that the solenoid valve 300 or the coolant radiating pipe 200 is blocked by foreign matter. At this time, the first alarm information may indicate that the solenoid valve 300 or the coolant radiating pipe 200 is blocked by a foreign object.

In combination with the foregoing embodiments, a detection device 100 according to an embodiment of the present application is described below. Referring to FIG. 6, the detection device 100 includes a control chip 110 and a power supply circuit 120; optionally, it may also include a detection coil 130 and a power supply circuit. 120 is connected to the solenoid valve 200 and the control chip 110 respectively, and the power supply circuit 120 can supply power to the solenoid valve 200 and the control chip 110. The control chip 110 is connected to the system management module 500, and the control chip 110 and the system management module 500 can transmit signals (such as a first alarm signal and a control signal, etc.).

The power supply circuit 120 includes a switch module 122, a power supply module 121, and a voltage converter 123; the power supply module 121 is connected to the solenoid valve 300 through the switch module 122, the switch module 122 is connected to the control chip 110, and the power supply module 121 is connected to the control chip through the voltage converter 123 110, supply power to the control chip 110.

The pins of the control chip 110 are connected to any one of the detection coils 130 to obtain an analog signal of leakage. The other pin of the control chip 110 is connected to the first coil 131 and the second coil 132 at the same time, and detects the voltage difference between the first coil 131 and the second coil 132 in the detection coil 130.

The other pins of the control chip 110 are respectively connected to the component 400 to obtain the temperature of the component 400.

In the detection device 100 shown in FIG. 6, the control chip 110 controls the working state of the solenoid valve 300 by controlling the power supply state of the power supply circuit 120 to the solenoid valve 300. When the control chip 110 controls the operating state of the solenoid valve 300, it can obtain the temperature difference of the component 400, and determine whether the solenoid valve 300 and the cooling liquid heat pipe 200 are abnormal according to the temperature difference. If the solenoid valve 300 or the cooling liquid heat pipe 200 is abnormal, If there is an abnormality, the control chip 110 may send the first alarm information to the system management module 500 to notify the solenoid valve 300 or the cooling liquid heat pipe 200 of the abnormality. The control chip 110 can also detect the voltage difference between the first coil 131 and the second coil 132 in the detection coil 130. When it is detected that the voltage difference between the first coil 131 and the second coil 132 is not zero, it can report to the system The management module 500 sends second alarm information to notify the detection coil 130 of the failure.

It should be noted that the embodiments provided in this application are merely illustrative. Those skilled in the art can clearly understand that for the convenience and conciseness of description, in the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in an embodiment, reference may be made to other implementations. The description of the case. The features disclosed in the embodiments, claims, and drawings of the present invention may exist independently or in combination. The features described in the form of hardware in the embodiments of the present invention can be executed by software, and vice versa. There is no limitation here.

Claims

A detection device, characterized in that the device is used to detect whether a cooling liquid radiating pipe in a device or a solenoid valve on the cooling radiating pipe is abnormal, and the device includes a control chip;

The control chip is used to control the working state of the solenoid valve; and in the case of controlling the working state of the solenoid valve, obtain the temperature difference of the components in the device; determine the temperature difference according to the temperature difference. The coolant radiating pipe or the solenoid valve is abnormal.
The device according to claim 1, wherein the device further comprises a power supply circuit, and the power supply circuit is used for supplying power to the solenoid valve and the control chip;

The control chip is used to control the power supply state of the power supply circuit to the solenoid valve, and control the working state of the solenoid valve.
The device according to claim 1 or 2, wherein the control chip is specifically configured to: control the solenoid valve to change from an open state to a closed state, and obtain all the parameters after the temperature of the components of the device stabilizes. The first temperature difference of the components in the device;

If it is detected that the first temperature difference is lower than a first threshold, it is determined that the solenoid valve is abnormal.
The device according to any one of claims 1 to 3, wherein the control chip is specifically configured to: control the solenoid valve from a closed state to an open state, and after the temperature of the components of the device stabilizes , Obtain the second temperature difference value of the component in the device;

If it is detected that the second temperature difference value is lower than a second threshold value, it is determined that the cooling liquid radiating pipe or the solenoid valve is abnormal.
The device according to any one of claims 1 to 4, wherein the power supply circuit supplies power to the solenoid valve, and the solenoid valve is in an open state; the power supply circuit powers off the solenoid valve, and the solenoid valve is open. The solenoid valve is closed.
The device according to any one of claims 1 to 4, wherein the power supply circuit powers off the solenoid valve, and the solenoid valve is in an open state; the power supply circuit powers the solenoid valve, and the solenoid valve is open. The solenoid valve is closed.
The device according to any one of claims 1 to 6, wherein the control chip is further configured to send to the system management module in the device after determining that the coolant heat pipe or the solenoid valve is abnormal The first alarm information, where the first alarm information is used to indicate that the coolant radiating pipe or the solenoid valve is abnormal.
The device according to any one of claims 1 to 7, wherein the control chip is further used to receive a control signal from the system management module before acquiring the temperature difference of the components in the device, and the control chip The signal is used to instruct the control chip to detect whether the cooling liquid radiating pipe in the equipment and the solenoid valve on the cooling radiating pipe are abnormal.
The device according to claim 7, wherein the device further comprises a detection coil, the detection coil is used to detect whether the coolant radiating pipe in the device is leaking; the control chip is connected to the detection coil, and It is used to detect whether the detection coil is faulty.
9. The device of claim 9, wherein the detection coil comprises a first coil and a second coil connected in parallel, and the control chip is specifically used to detect when the first coil and the second coil are short-circuited, If the voltage difference between the first coil and the second coil is not zero, send second alarm information to the system management module, and the second alarm information is used to indicate the detection The coil is faulty.
The device according to claim 9, wherein the control chip is further configured to: if the voltage difference is zero, send instruction information to the system management module, and the instruction information is used to instruct the detection coil normal.
9. The device of claim 9, wherein the control chip is further configured to receive a leakage analog signal through the detection coil, and the leakage analog signal is used to indicate the leakage of the cooling liquid heat pipe.
A server, characterized by comprising components, a cooling liquid radiating pipe, a solenoid valve on the cooling radiating pipe, and the detection device according to any one of claims 1-12.